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ELDELAN'O. FEEDING IN FUEL TO PURNAGES AND EI RE BOXES.

No 12,546., Patented Mar. 20,1855

1 Boxes of All Kinds; anal do hereby ;de-.

rnnnnve Font. TO FURNACES.

- .Sre rcatipri l ece r ratn l 2. 6. date March 20, 1855..

a r I Be known HOWARD DELANO, 0f Syracuse, in; the cou t 0i Onondaga nd State of New York, have invented a certain newand usefulImprovement in the Manner of Feeding. in Fuelj to. Furnacesandi Fireclarethefollowing to bea full, clear, and

exact description"ofqthe same, reference bemgmhad to the accompanying drawings,

making a part thereof, in which UFigurexrl, represents a vertical section through a fire box, and showing the appa-; wratus by which. the; fuel is feduinto it, Fig.

2,:reprsentswa view x looking up i from the 1 under :iside of Fig. IT-or of Fig. 1 turned upsidehdownl Fig.6, represents, theiifeed box and grate or cut oif, detached, andMFigS- 1 4 35,? 6,::and 7,1tepresentviews of the several.

pieces for operating the feed box and grate or out 01f, detached, and uncombined With eachother.

Similar letters in the several nfigures de-" note like parts. H

i A, represents the top plate of a stove or furnace, in the center of. whichis placed a fire box B, the bottom of which is open, and the sides furnished with ppenings a, a, a, to, admit air to the burning fuel. The fire box is bowl-shaped, or flaring from its bottom upward, the object being to-furnish the fresh fuel in the center of the burning mass, for i two purposes-first to] cause the gases from the fresh coal to; pass. through the burning mass above it, and thus consume it, and secondly to protect, thejssides of the fire box from the intensity of the fire, by keeping the lesser heat of the mass in 'contact with said sides which admits of the fire box being made of thin metal. i i

j (3,0, are two ways underneath the top plate A, in which the feed box D, and grate or cut off slides, as will bedescribed.

E, is a bracket or bail, extending downward from opposite sides of a ring 1). (as

seen in Fig. 7) and in the lower ends'of which bracket or bail, is a wrist pin 0, to

which one arm or a divided or forked lever \ing at d. Gr (Fig. 4,)

F, is connected,the fulcra of said lever beis a slotted piece of metal firmly united to the feedbox D, and having a projection e;upon it, which receives the ring I), when it comes to the bottom of the feed box, and prevents it from dropping too low. The lever F, is fastened or plvoted to the piece G, at d. On the side of the piece G, is pivoted at f, a trigger H, in the edge of which a slot 9, is cut, to receive a pin h,in the lever Fj, this being for the, purp se of old ng up, and then r pping th ringc, as will be. described in the operation of feeding in the fuel.

' I, is. a crank shaft, supported in the suspended arms J, and having a crank K upon it for rocking or; turning it. The crank part of this shaft I, works in the slot L, of'

the piece G, and gives to said piece G, and the several parts connected with it, a reciprocating motion, each way offithe center of motion of the crank shaft. Thismotion will be variable, for as the crank part of the shaft is moving vertical either in going up or coming down, it will but slightly move the part G, ifat all. But when at the up? per orlower part of its arc, it will move G, and its accompanying: parts over a space equal to twice thedength of the crank.

I, havelspoken of one arm of the lever F, and its functions. There is also another though shorter arm M, which projects across the slot L, and as the crank shaft rises through said slot, it catches underneath said arm M, and raises it, together with the lever F, of which it is a part, upward until the pin h takes into theslot g. In raising up F,

of course the ring 6, in the feed box which is connectedto it rises also, and just before the crank part of the shaft I, slips past the arm M, the pin h, has entered the slot g, in the trigger H, which continues to. hold up the leverv F, after the crankshaft I, has passed the arm M. By this means the ring I), and its cover 71 which forms a tight bottom" (though a removable one) in the feed box D, is held up until it is first, by the continued operation of the crank moved in its ways, C, and the descent of the crank part, forces the trigger H, away from the pin it, which allows it to drop until it reaches 6, where it is held. Before the crank shaft "trips the trigger H, it (the shaft) has passed nected together, so that as they are slid to and fro underneath the fire box B, one or the other shall hold up the fire in said box. D, are not necessarily rate bars, though I prefer them as such, "or by a simple working of the crank K, the fire can be raked down,

or agitated; its particular duty is to retain the coal in the box, as draft can be introduced elsewhere, if not suflicient through the openings a, and acts as a cut off, to prevent the coal from falling out of the fire box.

The advantages arising from the feeding in of the coal underneath the mass, is that the gases arising therefrom pass through the burning mass on top of it, and are consumed, which saves fuel, whilst the gas pipe which is ordinarily several inches in diameter for leading,off the gases, need not in my case be over two inches in diameter for stoves. I also save the burning out of the fire box by keeping the dense heat and burning gas, in the center of the fire, keeping the surrounding though less heated products as a shield to the metal.

The operation of feeding in the coal is as follows. The feed box is run out to the openingin the top plate A (Fig. 2,) and the coal thrown into said box, the bottom being down as seen in Fig. 1. The crank is now turned which first draws the feed box immediately underneath the fire box, and by continuing the turning the bottom of the feed box, and the coal on it, is forced up into the fire box, underneath the burning fuel therein. By continuing to still further turn the crank, the feed box is run back, while the grate bars, or cut off takes its place, and Kindling may hold the coal in the fire box.

' be introduced in the same Way to the fire.

By removing the lid or cover i from the ring, and running the feed box empty underneath the fire box-its whole contents will drop through said feed box, into the ash pit below.

I design applying this mode of feeding in fuel to furnaces, locomotives, heaters, and stoves of all kinds, and the mechanical means will of course vary with the particular fire box, or chamber to be fed, or its locality. But these changes would be obvious, and fairly come Within the scope of my invention.

Having thus fully described the nature of my invention, what I claim therein as new and desire to secure by Letters Patent is 1. The combined use of the feed box and grate bars or cut off, for feeding in fuel into the under part of the burning mass in the fire box or their mechanical equivalents, as described.

2. I also claim the combination of the crank shaft I, slotted piece G, lever F, and trigger H, or their mechanical equivalents for sliding the feed box and grate or cut off, and for raising and lowering the bottom of the feed box, substantially as described.

HOWARD DELANO'.

Witnesses:

THos. H. UPPERMAN, EMIL COHEN. 

